Master carpenter Norm Abram and host Kevin O'Connor open the show 120 feet below ground, where they're exploring the Crystal Caves of Bermuda. Back at the job site, Kevin finds project manager Alex DeCouto overseeing the prep and pour of the second-floor deck on the addition. Plumbing and heating expert Richard Trethewey meets civil engineer Keith Claridge on a neighborhood roof to see how 95 percent of Bermudians obtain drinking water: by collecting rainwater in roof catchments and cisterns known as "tanks." They visit a massive military fort turned catchment and a modern reverse-osmosis plant to see how the government supplements the water supply. Two weeks of rain might be good for the tank levels, but it's bad for the construction schedule, so job foreman John Richardson shows Norm and Kevin how work has progressed on the interior of the old house despite the rain. Then, Norm visits the general contractor's mill shop and volunteers to help out by building a cedar mantel for Harbour View's dining room fireplace.